YMGI WMMS-24EW-V2B(59)2 Manuel de service télécharger pdf (Page 5)

Find the cooling/heating load capacity of the space where the unit will be in service. Select matched WMMS

units for the space. Under sizing or over sizing equipment is NOT recommended.

Mini Split Wall Mount Systems come with three types: cooling only and heat pump and heat pump with electric

heater. These units can be easily wired. Either indoor unit or outdoor unit can be used with any matched

comparable outdoor unit or indoor unit as long as they have matched size and control. Must refer to electrician

before doing so.

Each system is fully tested per rigorous standards at factory. Acoustically and thermally balanced design and

systematically optimized system give each unit a healthy birth off the assembly line with proved quality and

reliability.

Since outdoor units can be installed on the wall or balcony, where is close to indoor unit, at least the following

benefits will be brought to contractors and customers:

* Indoor unit operates much quieter than air diffuser of central air conditioning system.

* Stylish design of indoor unit adds beauty to rooms.

* Connection pipe, refrigerant usage is much saved compared to installing up-flow condensing units on the

ground and long copper/wire lines needed between indoor and outdoor units.

* Contractor work is eased and time is saved.

* Efficiency and lifetime of system is increased.

Mode

Cooling

Heating

Dry Bulb

Wet Bulb

61 to 105 F (16 to 40.5 C)

17 to 86 F (-8 to 30 C) 17-42 F (-8 to 5 C)

Recommended Temperature

Ranges-Indoor Side

Recommended Temperature

Ranges-Outdoor Side

IMPORTANT NOTES:

1) Working temperature ranges listed above are guaranteed for units to work properly, though these temperature

ranges are conservative.

2) Units may still work well out of the guaranteed working temperature ranges, as long as they are installed

properly and are still in good conditions within design envelop.

3) Units are designed for mild low temperature AC cooling applications. Units come with low temperature control

to protect agent too low pressure when running for AC cooling in weather colder than 45 F and warmer than

35 F. In this temperature ranges, units may not need to add refrigerant and/or jumper at low pressure switch.

If units are to be used for cooling only below 35 F, then better to check and add refrigerant and jumper at low

pressure switch. Situation varies upon indoor load and indoor unit installation conditions such as TEX type,

elevation vs outdoor unit, copper line set size and length, refrigerant level and leakage level.

4) Units may still work HP heating well way below 17 F, though exact temperatures are not listed. Units will

defrost during HP heating model in cold weather. Suction (bigger) pipe should be hot and the discharge

(smaller) pipe should be warm at outdoor unit during HP heating mode, if everything is right.

5) Optional component Wind Baffle installed at fan discharge side on the cabinet is designed to keep from cold

air blowing into propeller fan blade against airflow, and so help unit work better in both AC cooling and HP

heating mode in colder weather ranges.

Mode

Cooling

Heating

Dry Bulb

Wet Bulb

17-35 F (-8 to 2 C)

45 to 115 F (7 to 46.1 C)

17 to 75 F (-8 to 23.8 C)

OPERATING TEMPERATURE RANGES

P7 OF 34

YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...

Too Cold Not Cold Too Hot Not Hot

P8 OF 34

INDOOR UNIT-MAJOR COMPONENTS

Find the cooling/heating load capacity of the space where the unit will be in service. Select matched WMMS

units for the space. Under sizing or over sizing equipment is NOT recommended.

Mini Split Wall Mount Systems come with three types: cooling only and heat pump and heat pump with electric

heater. These units can be easily wired. Either indoor unit or outdoor unit can be used with any matched

comparable outdoor unit or indoor unit as long as they have matched size and control. Must refer to electrician

before doing so.

Each system is fully tested per rigorous standards at factory. Acoustically and thermally balanced design and

systematically optimized system give each unit a healthy birth off the assembly line with proved quality and

reliability.

Since outdoor units can be installed on the wall or balcony, where is close to indoor unit, at least the following

benefits will be brought to contractors and customers:

* Indoor unit operates much quieter than air diffuser of central air conditioning system.

* Stylish design of indoor unit adds beauty to rooms.

* Connection pipe, refrigerant usage is much saved compared to installing up-flow condensing units on the

ground and long copper/wire lines needed between indoor and outdoor units.

* Contractor work is eased and time is saved.

* Efficiency and lifetime of system is increased.

INDOOR UNIT-MAJOR COMPONENTS

Air Filter

Front Panel or Faceplate

Air Inlets

Auto-Directional Louvers

(Up and Down)

Display

Test/Reset Switch

Remote Control (or Optional Wall Thermostat)

Manual Louvers

(Side to Side)

These units are designed for general T-1 weather conditions as outlined in the following table:

YMGI, A COMFORT MAKER, A JOY COMPANION, A SATISFACTION GUARANTOR...

1 2 3 4 5 6 7 8 9 10 ... 17 18

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YMGI WMMS-24EW-V2B(59)2 Manuel de service Page 5

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